Home / 628,571.03-867,519.44-352,959.81

Finding the Fourth Proportional to 628,571.03, 867,519.44 and 352,959.81

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Solution

The fourth proportional to 628,571.03, 867,519.44 and 352,959.81 is: 487,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,571.03 : 867,519.44 = 352,959.81 : x
  2. Step 2: Convert to fraction form
    628,571.03/867,519.44 = 352,959.81/x
  3. Step 3: Cross multiply
    628,571.03x = 867,519.44 × 352,959.81
  4. Step 4: Simplify right side
    628,571.03x = 306,199,494,948.91
  5. Step 5: Solve for x
    x = 306,199,494,948.91/628,571.03
  6. Step 6: Final answer
    x = 487,135.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.